A mercenary or warrior who is trained in the art of ninjutsu, or a Japanese martial-arts style which involves stealth, speed, mastery of various weapons and poisons, efficient and deadly combat tactics, and the will to commit seppuku, or suicide, to defend the honor of a particular family or clan.

The ninja's movement was like the water rippling against the disemboweled corpse of the samurai who dared to challenge him.

ninja facts:
- Ninjas can divide by zero
- ninjas dont walk the ground moves for them
- when ninjas do pushups, they dont push themselves up, they push the world down
- when it rains ninjas dont wet wet, the rain gets ninja
- what ever ninjas touch turns to gold
- Ninjas do not sleep, they wait.
- Ninjas tears cure cancer, too bad they never cry
- Ninjas donate alot of blood to the red cross, just not there own..
- Ninjas make onions cry
- Ninjas are allowed to talk about fight club
- Ninjas gave cats nine lives so they could kill them more.
- Bullets dodge ninjas
- Ninjas iron there shirts while wearing them
- Ninjas can predict the songs on there ipod shuffle
- Ninjas put pants on 2 legs at a time
- Ninjas play minesweeper with real mines
- Ninjas taught kool aid man how to break though walls
- Ninjas created the wheel. Twice.
- A ninja once recieved a hollywood star, he made the handprint when the cement was dry.
- Ninjas are circumcised. They perform it themselves.
- In an average living room there are 1,242 objects ninjas could use to kill you, including the room itself.

An intense sexual position involving a man and a woman and a dildo, the way it is performed is
first, you turn off all the lighs in the room
second, you start banging the girl in the ass
third, you shove the dildo in her ass and pull out so she "does not know"
fourth, you jump to her side scream NINJA and punch her in the face.

Ninja were people of feudal japan trained in Ninpo or Ninjutsu. It was possible to use skills learned in assasination-which was done, but not coldly. Ninja's were japans peace keepers and information gathers-they would assasinate political powers that threatned peace of japan, and would often be recruited by a higher power (such as a warlord like Oda Nobunaga, or Ieyasu Tokugawa) to spy on enemy's and gather information. Ninja were originally called *Shinobi*, literally translating into a expert at information gathering. Ninja groups were divided into families and clans. The two regions were Ninjutsu developed and Ninja were founded were Iga and Koga provinces. there were roughly 53 subgroups of Koga and Iga. One of the most famous Ninja in history was Hattori Hanzo-a famous warlord and Ninja of Iga.
Random facts:
In 1676, the book Bansenshukai about Ninja methods was written by Fujibayashi Yasutake, a Samurai of Iga castle.
In 1681 the book Shoninki (correct Ninjutsu memories) was written by Fujibayashi Masatake.
In 1653 the book Ninpiden meaning secret teachings of Ninjutsu was written by Hattori Hanzo Yasunaga.
There were very few ninja-when oda nobunaga attacked Iga, 80 ninja fled.
Genbukan and Bujinkan are the only organizations keeping true Ninjutsu alive today.
Ninja didnt wear black very often-they wore deep red or dark green when on missions, and in winter snow, White.
Ninja were often Samurai too-afterall its only Title, not material.
Ninja didnt actually use straight swords much-only when they were desperate. After ninja had established themselves, they could use curved blades.
Other names used for ninja were Kancho, Shinobi, Kusa, Sppa, Rappa, Tsuppa, Mitsumoto(Kembun, Metsuke, Kaiken). Kyodan, Kanja, Choja, Shinobi no Mono, Onmitsu.
Ninja arent magical, they just understood sciences more advanced then the rest of the population of the time.
Ninja couldnt fly.
Ninja couldnt perform supernatural stunts.
Ninja can evade swords.